PHP version compatibility test with a few files on 5.2
Check for PHP version compatibility problems in WordPress plugins, with support for just a few files running in PHP 5.2.
WordPress login link with a popup form
I'm a big fan of the Login with Ajax plugin. It makes it really easy to add a nice popup login form to a website. Here's how to make the most of it, with a little custom code.
Enqueue scripts on the WordPress front end and login page
If you want to load a script or stylesheet on both the WordPress front end and login page, here's how to register it once and load it in the appropriate places.
Gravity Forms and WooCommerce country codes
Gravity Forms and its User Registration add-on make it really easy to create custom registration pages. One problem you'll hit if you combine that with WooCommerce is that WooCommerce uses standard country codes, but Gravity Forms uses country names. But that can be fixed.
Restrict Amazon SES by domain name
Amazon Simple Email Service (SES) makes it easy, and cheap, to send emails reliably from a website. Here's how to set it up for use with multiple domains.
Select PayPal landing page for Easy Digital Downloads
Easy Digital Downloads comes with a PayPal Standard payment gateway, which lets us get our store up and selling quickly and cheaply. Let's get it to select a better landing page with PayPal Standard, and make our credit card customers happier.
Localising a Gravity Forms add-on
The Gravity Forms Add-on Framework makes the job of creating an add-on really easy. But there's a couple of problems with letting it load our text domain for us:
Configure WP Super Cache
Page caching is important for the performance of your WordPress website. Here's how to configure WP Super Cache to serve up your site's content from the cache, without bogging down your server.
Payment receipts with Gravity Forms and eWAY
Gravity Forms email notifications can be used to send simple payment receipts for eWAY transactions.
PHP DateInterval can’t have both weeks and days
PHP has some handy Date classes, including one for specifying date intervals. But you need to be wary of some idiosyncrasies, as I just found out.
Gravity Forms add-ons need to have capabilities
TIL that you need to give Gravity Forms add-ons some capabilities, otherwise they might disappear from the WordPress admin.
exim4 with wildcard email aliases
When you configure exim4 as your email transport, you will likely need to tell it to replace some user names with aliases. To make your life simpler, use wildcards to do the job for you.